Septic tank.



H. G. ROGERS.

SEPTIC TANK.

APPLICATION FILED AUG. 5, 190B.

917,663, Panted Apr. 6, 1909,

compartment l of the tank.

TENT OFhiQll;

vHENRY OROGERS, OF ESTES PARK, COLORADO.

SEPTIC Application led August 5,

To all whom 'it may concern."

Be it known that I, AHENRY C. R'oGERs,a

subject of the King of Great Britain, residing .at Estes Park, inthecountyq of Larimer-and State of Colorado, have invented new anduseful Improvements in Septic fTanks, of which the following is aspecification.

- This invention relates to apparatus designed for the purpose ofcatalyzing sewage and one ofthe principal objects of the invention is toprovide a tank having various partitions and a system of pipes wherebythe lighter and heavier constituents of the sewage may be separated,dissolved and deodorized by oxidation.

Another object of the invention is to provide a tank in which the inletpipe is placed in communication with the outer air in such away that thenoxious gases from the tank cannot enter the sewer or house drain.

These and other objects may be attained by the construction illustratedby the ac companying drawing, in whicht* Figure l is a plan of the tankWiththe cover or top removed, Fig. 2 is a vertical longitudinal sectionof the same with the cover and manholes in place.

Referring tothe i.li'awing, the numeral 1 designates a tank constructedof masonry or concrete walls, a concrete bottom and a top 4, preferablyformed of concrete and provided with suitable manholes 5 and 6. 'l`heinlet sewer pipe 7 enters thc .tank through a depending pi ie 8 whichterminates at va point below-thc level of the surface of th'e sewage inthe tank. A Ventilating )ipe 9 is attached to the pipe 8 and extendedtlirough the top 4, the upper end of said pipe having a perforatedgrating through which only fresh air can enter and ventilate the sewer.A partition 11 is formed in the compartment 1, and at the 'bottoni ofsaid. partition a perforated screen 12 is secured, said screenpreventing coarser particles of sewage lroir passing into A stand pipe13 is disposed in compartment l, said pipe being connected tothe outletpipe 14. -A partition 15 of less height than partition 11 separates thecompartment 1'LL from the third compartment 1l. in this compartment anoxidizing device located, comprising the vertical pipe 16 connected bythe tee 17 to the outlet pipe 14, said pipe 16 being' surspeciination ofLetters Patent.

rounded by a larger pipe 18 which extends vup through the manhole coveril and pi'oi at its lowerside, astand vided with a perforated gratingl Qthrough TANK.

Patented April 6, 1909.

1908. Serial No. 447,160.

water seal for preventing the sewage gas from entering the sewer orhouse drain 'but at the same time admitting fresh air to the saine.After the sewage passes into the compartnient 1 the lighter constituentswill be retained while that portion of the heavier which can. pass thescreen 12 will move to compartments lu of the sewage in thecoinpartnient 1L the heavier constituents will bel arrested by thepartition l5 whereas the i lighter can pass over said partition intocompai'tiiient 1h, the heavier' or more dense con Astituents incompartment 1b will descend and, by displacement, will be forced to riseinto the sleeve pipe 18until it passes into the pipe 16A throng i thesmall holes near its top.

This pipe 16 being in direct communication with the ou'tside air theeffluent, or matter discharged, becomes oxidized. 'lf the circulation ofair about the pi e 18 is sluggish a forced draft can be in( uced byartificial means such as by a spray of water. If the discharge from thetank is more than normal the sew age will rise till it flows over the toof the pipe 16, when the tendency to rise W' l be arrested.- Tlie tankcan be drained of its liquid contents by removing the pipesV 13, 16 and18 whenever required.

l claim:

l. A septic tank comprising a series of' ing which the compartment canbe drain'ed;'

an oxidizing device in another compartment comprising a pipe extendingto a point near the top of the tank, and a sleeve surrounding said pipeand leading to the outer air.

2. A septic tank provided with a series of partitions dividing the tankinto separate compartments, an inlet sewer pipe in one of saidcompartments, said inlet pipe having a depending connection forming awater seal,

a connection extending through the top tok ventilate the sewer and housedrain, one of said partitions being provided with a screen ipe, anoutlet pipe connected thereto,` an oxidizing device in a separatecompartment, said oxidizing device i In testimony whereof I'eix mysignature eomprisng a .pip oonneetpd to the outlet in presence of twoWitneses. 4 pipe an `rovlde with per oretlons Hear 1ts upper eng, asleeve surroundmgsaid plpe, HENRYC ROGERS' 5 said sleeve leading to theouter air end pro- Witnesses: l

vided with a forainiaious top, and manholes "LAWRENCE MCGINNIS, J1A.,S

leading to said tank. SIDNEY W. SHERMAN-

